“True Blood” hunk Joe Manganiello insists he’s a simple guy who loves to work out, watch sports and eat steak. Dining on a porterhouse and onion rings with friends at Benjamin Steakhouse on Thursday night, he confided that despite the attention he gets from the hit show, no one knows how to pronounce his last name. Then he gave the group, including author and journalist Anthony Bozza, a friendly lesson in pronunciation, sounding it out, “Mang-aniello.”